[1000mp] 1000mp Digest, Vol 133, Issue 1

[Floyd Sense]

Gary - I had the same problem on my Mark V a few months ago.  No need to 
think about replacing the inverter board unless you determine that the 
transformer is shot. First thing to do is to replace the electrolytic 
cap on the board.  You will have one or two surface mount fuses on the 
board and one of those is likely open.  You can buy a replacement from 
Mouser (or maybe Yaesu). If a previous owner has replaced the fuse(s) 
with a piece of wire, make sure to reinstall a fuse. These parts can be 
replaced for a couple of bucks or less.  When you have that problem 
fixed, consider shortening the high voltage leads coming out of the 
inverter board.  They're likely a few inches longer than they need to be 
and your display may brighten up when these leads are shortened.

The LED replacement route has gotten a bit more difficult as the USA 
supplier of the hardware no longer sells it.  You can, however, buy what 
you'd need from a ham in Spain (call escapes me at the moment) for 
somewhere around $125.

73, Floyd - K8AC
> Message: 6
> Date: Tue, 5 Mar 2019 14:25:54 +0000
> From: gary skillicorn <garyskillicorn at hotmail.com>
> To: "1000mp at mailman.qth.net" <1000mp at mailman.qth.net>
> Subject: [1000mp] Display Dead FT-1000MP
> Message-ID:
> 	<BN8PR10MB3250943BFAAFB472662A065ACA720 at BN8PR10MB3250.namprd10.prod.outlook.com>
> 	
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>
> It was not a gradual dimming but a sudden loss of the display preceded by a faint smell of a hot component. Performance otherwise is ok. Before I dig in to inspect the inverter board anyone have ideas of what I'll likely find.  Anyone have experience with inverter boards sold on Ebay?  I'd rather not go the LED display replacement mod unless I have to.
> Gary  K3GS
>
>